R&D, Advanced Technology


Coexistence low-temperature sintering and long life

When a metal is nano-sized, nanoparticles are fused to each other at around 100 °C, normally it does not conduct. However, good conductivity can be obtained. As a result of the effect of relatively increasing the surface area from nano-sization, it can be applied to applications such as catalysts by utilizing its active reactivity.

Features of Happy Japan Ag NANO ink

Since metal nano ink has a large specific gravity, it will settle (aggregate) immediately if it is left as it is. Our silver nano ink has achieved a long life without impairing the features of low-temperature firing.

We also have a lineup of Ag NANO inks that can be sintered at near room temperature, making them ideal for flexible substrates that are not suitable for high-temperature processing.

Lineup of our Ag NANO inks

Type Content rate
solvent Viscosity *
Application example
Type A 43~50 Butanol
2 Thin film formation
(for spin coating)
Type C Octanol
9 For inkjet patterning
Surface tension * 27[mN/m]
Type CS 14
Type BS Octanol

* Viscosity and surface tension are reference values and not guaranteed.

Application examples of our Ag NANO Ink

Silver particles with an average particle size of about 15 nm were prepared for inkjet use. It can be formed on demand in various patterns.

SEM image of Ag nano particles
(15~20nm spherical)
Electrode patterning
Can be used as an electrode by printing a pattern on film
Silion chips die-bonding on circuit board
By applying it to a metal surface and sintering it, both adhesion and conductivity are achieved.
IJ pattern example
L/S =35/40μm achieved on PET film(special specification)
Back electrode formation for organic solar cell

In addition, a wide range of applications to reduce contact resistance and solder replacement (die bonding) can be considered.


For more information, please contact us on the following page.

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